Quantum-classical correspondences for atomic operators: a positive P representation approachDOI: info:10.1364/JOSAB.12.001774v. 121774–1782
You, L., Cooper, J., and Zoller, P. 1995. "Quantum-classical correspondences for atomic operators: a positive P representation approach." Journal of the Optical Society of America B Optical Physics, 12 1774–1782. https://doi.org/10.1364/JOSAB.12.001774.